Plasma and Fusion Research
Volume 19, 1201021 (2024)
Rapid Communications
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
- 1)
- Graduate School of Energy Science, Kyoto University, Uji 606-8501, Japan
Abstract
This work reports a novel approach employing a retarding field analyzer (RFA) to simultaneously measure parallel and perpendicular ion temperatures. I-V curves obtained by the RFA were analyzed considering the influence of selective ion transmission, and the ion temperatures were evaluated. The RFA analysis yielded parallel and perpendicular ion temperatures of 1.2 eV and 2.1 eV, respectively. The perpendicular ion temperature obtained by an ion sensitive probe was 2.0 eV, demonstrating good agreement with that evaluated by the RFA.
Keywords
retarding field analyzer, selective ion transmission, ion temperature, radio-frequency plasma, DT-ALPHA
Full Text
References
- [1] T. Takizuka et al., J. Nucl. Mater. 128-129, 104 (1984).
- [2] S. Togo et al., J. Nucl. Mater. 463, 502 (2015).
- [3] A. Froese et al., Plasma Fusion Res. 5, 026 (2010).
- [4] R.A. Pitts et al., Nucl. Fusion 46, 82 (2006).
- [5] M. Kocan et al., Contrib. Plasma Phys. 50, 836 (2010).
- [6] M. Henkel et al., Fusion Eng. Des. 157, 111623 (2020).
- [7] R. Ochiai et al., Plasma Fusion Res. 15, 2401040 (2020).
- [8] H. Takahashi et al., AIP Advances 10, 085018 (2020).
- [9] H. Takahashi et al., Phys. Plasmas 30, 053506 (2023).
- [10] A. Okamoto et al., Plasma Fusion Res. 3, 059 (2008).
- [11] H. Takahashi et al., Phys. Plasmas 26, 022511 (2019).
- [12] A.W. Molvik, Rev. Sci. Instrum. 52, 704 (1981).